syntax error make zope unstratable

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3527 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Base.py

@@ -1845,7 +1845,7 @@ class Base( CopyContainer, PortalContent, ActiveObject, ERP5PropertyManager ):
     """
     script = self._getTypeBasedMethod('asPredicate', script_id=script_id)
     if script is not None:
-      return = script()
+      return script()
     return None
 
   security.declareProtected(Permissions.View, 'get_local_permissions')